No Harem? Well, that's unfortunate for me
. But your story, your rules. Do your thing
.
Speaking as a connoisseur of True Harem content. The general rule of thumb for a Harem is that there be
at least 3 or more female characters pursuing the male protagonist intimately all at the same time, in a single playthrough/single route story.
True Harem is where all the female characters know about each other and all happily agree to sharing the male protagonist romantically and sexually.
Or think of it as a package deal like you said, but with 3 or more women, instead of just 2 women.
For your planned routes they'd just be a "love triangle" or "three-way romance", or polyamory to be less specific. But not a Harem.
Correct me if i'm wrong here. In your other game "Picture Perfect", in a single playthrough the protagonist can/will be in a relationship with Paris, Sasha, Miracle, and Sabrina all at the same time with them all aware of each other and cool with sharing Daddy protagonist. So, with there being 4 girls there, that qualify as a harem. A true harem in that case.
Games where the protagonist can have sex with multiple women throughout the story in a single route, but has to pick one girl at the ending isn't a harem. Misleading is what it is and that's assuming there isn't a oblivious main love interest taking all the screen-time & renders, seen it too often.
Speaking in general here, not putting any words in your mouth or anything. But a Harem plot can exist in any setting, genre or theme, Fantasy, Space Opera, Sci-fi, Mafia/Gangster story, Crime Mystery, etc. Not just a slice-of-life theme. I got what you're saying, that it won't fit for your story you have in mind.
Excuse me for rambling.